Does such software exist?

[Chevron]

Let's say I had 5 usb webcams. Is there (free)software that would let me view all of them simultaneously?

 

[Juggy]

Let's say I had 5 usb webcams. Is there (free)software that would let me view all of them simultaneously?

Yes, WebcamXP. Upto 16 devices I think.

I think the freeware version disables some of the functionality.

 

[The_Unbeliever]

Zoneminder - but only if the USB webcams are supported by zoneminder.

 

[Chevron]

Thanks, will give both of them a look see.

 

[XSV1]

Yes, VLC can do this. See http://www.videolan.org/